Simple Mail Transfer Protocol

Table of Contents

1. INTRODUCTION

2. THE SMTP MODEL

3. THE SMTP PROCEDURE

3.1. Mail

3.2. Forwarding

3.3. Verifying and Expanding

3.4. Sending and Mailing

3.5. Opening and Closing

3.6. Relaying

3.7. Domains

3.8. Changing Roles

4. SMTP Commands

Next